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STW41412 bảng dữ liệu(PDF) 8 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  Single Coil Dual Output Step Down DC/DC Converter for Digital Base Band and Multimedia Processor Supply
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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2 Electrical Characteristics
STw4141
8/27
2.3
DC electrical characteristics
Characteristics measured over recommended operating conditions unless otherwise is noted.
All typical values are referred to TA = 25°C, PVDD = 3.6V, VDD = 3.6V.
Table 5.
DC electrical characteristics
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
PVDD
Power supply voltage
2.7
5.5
V
ILIM
Peak current limit
1.6
A
VOUT1
(1)
Output voltage 1(2)
-3
+3
%
VOUT2
Output voltage 2(2)
VSEL = VDD,
MODE/SYNC = VDD
-3
+3
%
Output voltage 2(2)
VSEL = GND,
MODE/SYNC = VDD
-3
+3
%
IOUT1
Output current 1
200
mA
IOUT2
Output current 2
400
mA
Iq
Quiescent Current
(PWM)
IOUT1 = 0 mA, IOUT2 = 0 mA
EN = VDD, VSEL = VDD
MODE/SYNC = VDD,
AUTO = GND
600
µA
Quiescent Current
(PFM)
IOUT1 = 0 mA, IOUT2 = 0 mA
EN = VDD, VSEL = VDD
MODE/SYNC = GND,
AUTO = GND
90
µA
Shutdown Current
EN = GND,
VSEL = GND
MODE/SYNC = GND,
AUTO = GND
15
µA
Enable functions
VENH
Enable Threshold High
0.9
V
VENL
Enable Threshold Low
0.4
V
Mode/sync functions
VM/SH
MODE/SYNC
Threshold High
0.9
V
VM/SL
MODE/SYNC
Threshold Low
0.4
V
VSEL functions
VSELH
Voltage Selection
Threshold High
0.9
V
VSELL
Voltage Selection
Threshold Low
0.4
V


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